TDA7379 4 X 13 - 2 X 38W AUDIO POWER AMPLIFIER 2 X 13 + 1 X 38W AUDIO POWER AMPLIFIER PRODUCT PREVIEW HIGH OUTPUT POWER CAPABILITY 2 x 38W/4Ω @18V, 1KHz, 10% 4 x 11W/4Ω @18V, 1KHz, 10% 2 x 20W/8Ω @18V; 1KHz, 10% 4 x 13W/2Ω @15V, 1KHz, 10% 2 x 34W/8Ω @ 22V, 1kHz, 10% ■ MINIMUM EXTERNAL COMPONENTS COUNT: – NO BOOTSTRAP CAPACITORS – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN (26dB BTL) ■ ST-BY FUNCTION (CMOS COMPATIBLE) ■ NO AUDIBLE POP DURING ST-BY OPERATIONS ■ DIAGNOSTIC FACILITIES – CLIP DETECTOR – OUT TO GND SHORT – OUT TO VS SHORT – SOFT SHORT AT TURN-ON – THERMAL SHUTDOWN PROXIMITY Protections: ■ ■ OUPUT AC/DC SHORT CIRCUIT Multiwatt15 (Vertical) ORDERING NUMBER: TDA7379 ■ ■ ■ ■ ■ – TO GND – TO VS – ACROSS THE LOAD SOFT SHORT AT TURN-ON OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER FORTUITOUS OPEN GND REVERSED BATTERY ESD BLOCK DIAGRAM March 2004 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/7 TDA7379 DESCRIPTION The TDA7379 is a new technology class AB audio processor amplifier able to work either in DUAL BRIDGE or QUAD SINGLE ENDED configuration. The exclusive fully complementary structure of the output stage and the internally fixed gain guarantee the highest power performances with extremely reduced component count. The on board clip detector simplifies gain compression operation. The fault diagnostic makes it possible to detect mistakes during the set assembly and wiring in the equipment. ABSOLUTE MAXIMUM RATINGS Symbol Value Unit Supply Voltage Idle mode (no signal) 24 V Supply Voltage operating 22 V Supply Voltage AC-DC-short safe 20 V IO Output Peak Current (not repetitive t = 100µs) 5 A IO Output Peak Current (repetitive f > 10Hz) 4 A Power Dissipation Tcase = 85°C 36 W -40 to 150 °C Value Unit 1.8 °C/W Vs Ptot Tstg, Tj Parameter Storage and Junction Temperature THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction to case PIN CONNECTION (Top view) 2/7 Max TDA7379 ELECTRICAL CHARACTERISTCS (Refer to the test circuit, VS = 15V; RL = 4Ω; f = 1KHz; Tamb = 25°C, unless otherwise specified). Symbol Parameter VS Supply Voltage Range Id Total Quiescent Drain Current VOS Output Offset Voltage PO Output Power PO THD CT Output Power Distortion Cross Talk RIN Input Impedance GV Voltage Gain GV Voltage Gain Match EIN Input Noise Voltage Test Condition Min. Typ. 8 RL = ∞ THD = 10%; RL = 4Ω Bridge Single Ended Single Ended, RL = 2Ω 25 6.5 Max. Unit 20 V 150 mA 150 mV 28 7.5 13 W W W THD = 10%; Vs = 18V Single Ended, RL = 4Ω BTL, RL = 4Ω 11 38 W W THD = 10%; Vs = 18V BTL, RL = 8Ω 20 W THD=10%; VS = 22V Bridge, RL = 8Ω Single Ended, RL = 4Ω 34 16 W W RL = 4Ω Single Ended, PO = 0.1 to 4W Bridge, PO = 0.1 to 10W 0.02 0.03 f = 1KHz Single Ended f = 10KHz Single Ended f = 1KHz Bridge f = 10KHz Bridge 55 Single Ended Bridge 20 10 0.3 % % 70 60 dB dB 60 dB dB 30 15 KΩ KΩ Single Ended 19 20 21 dB Bridge 25 26 27 dB 0.5 dB Rg = 0; "A" weighted, S.E. Non Inverting Channels Inverting Channels Bridge Rg = 0; 22Hz to 22KHz SVR Supply Voltage Rejection Rg = 0; f = 300Hz 50 ASB Stand-by Attenuation PO = 1W 80 ISB ST-BY Current Consumption VST-BY = 0 to 1.5V VSB ST-BY In Threshold Voltage VSB ST-BY Out Threshold Voltage Ipin7 ST-BY Pin Current 2 5 µV µV 3.5 µV dB 90 dB 100 µA 1.5 V 3.5 V Play Mode Vpin7 = 5V 50 µA Max Driving Current Under Fault (*) 5 mA Icd off Clipping Detector Output Average Current d = 1% (**) 90 µA Icd on Clipping Detector Output Average Current d = 5% (**) 160 µA Voltage Saturation on pin 10 Sink Current at Pin 10 = 1mA Vsat pin10 0.7 V (*) See built-in S/C protection description (**) Pin 10 Pulled-up to 5V with 10KΩ; RL = 4Ω 3/7 TDA7379 STANDARD TEST AND APPLICATION CIRCUIT Figure 1. Quad Stereo 10K R1 ST-BY C7 10µF IN FL 7 4 3 13 1 C1 0.22µF IN FR 5 12 C4 0.22µF Note: The output decoupling capacitors (C9,C10,C11,C12) could be reduced to 1000µF if the 2Ω operation is not required. IN RR C10 2200µF OUT FL C9 2200µF OUT FR C11 2200µF OUT RL C12 2200µF OUT RR 2 C2 0.22µF IN RL VS C5 1000µF C6 100nF 15 11 C3 0.22µF 14 6 8 10 9 C8 47µF DIAGNOSTICS D94AU063A Figure 2. Double Bridge 10K R1 ST-BY C5 10µF IN L C1 0.47µF IN R 13 7 4 3 1 5 OUT L 2 12 C2 0.47µF 15 11 OUT R 6 C8 47µF VS C3 1000µF C4 100nF 14 8 10 9 DIAGNOSTICS D94AU064A Figure 3. Stereo/Bridge 10K ST-BY VS 10µF IN L 100nF 7 4 13 3 1 0.22µF IN L 2200µF 2 5 2200µF 0.22µF IN BRIDGE 8 OUT R OUT BRIDGE 11 6 OUT L 15 12 0.47µF 1000µF 9 10 14 47µF DIAGNOSTICS 4/7 D94AU065A TDA7379 Figure 4. P.C. Board and Component Layout of the fig.1. Figure 5. P.C. Board and Component Layout of the fig.2 5/7 TDA7379 DIM. mm MIN. TYP. inch MAX. MIN. TYP. A5 MAX. 0.197 B 2.65 C 0.104 1.6 D 0.063 1 0.039 E 0.49 0.55 0.019 0.022 F 0.66 0.75 0.026 0.030 G 1.02 1.27 1.52 0.040 0.050 0.060 G1 17.53 17.78 18.03 0.690 0.700 0.710 H1 19.6 0.772 H2 L OUTLINE AND MECHANICAL DATA 20.2 0.795 21.9 22.2 22.5 0.862 0.874 0.886 L1 21.7 22.1 22.5 0.854 0.87 0.886 L2 17.65 18.1 0.695 L3 17.25 17.5 17.75 0.679 0.689 0.699 L4 10.3 10.7 10.9 0.406 0.421 0.429 0.713 L7 2.65 2.9 0.104 M 4.25 4.55 4.85 0.167 0.179 0.191 0.114 M1 4.73 5.08 5.43 0.186 0.200 0.214 S 1.9 2.6 0.075 0.102 S1 1.9 2.6 0.075 0.102 Dia1 3.65 3.85 0.144 0.152 Multiwatt15 (Vertical) 0016036 J 6/7 TDA7379 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2004 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 7/7